Laying-off and spacing machine for structural steel.



PATENTED DEG. 19, 1905.

c. mcAmTAHAN. LAYINGf-OPT AND sPAcTNG MACHINE TOR STRUCTURAL STEEL.

APPLIUATION FILED HAB..31, 1905.

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OYRS M. OARNAIIAN, OE SANDYLAKE, PENNSYLVANIA, ASSIGNOR To FIDELITY TITLE AND TRUST COMPANY, TRUSTEE, OE PITTSBURG, PENNSYLVANIA, A .CORPORATION OF PENNSYLVANIA.

LAYING-OFF AND SPACING MACHINE FOR STRUCTURAL STEEL.

Specification ofLetters Patent.

Patented Deo. 19, 1905.

Application led March 31, 1905. Serial No. 253,186,

To all whom it may concern.-

Be it known that I, CYRUS M. CARNAHAN, of Sandylalre, in the county of Mercer and State of Pennsylvania, have invented a certain new and useful Laying-Off and Spacing Machine for Structural Steel, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of' this specification, in Which- Figure 1 is a plan View, partially in section, illustrating my invention. Fig. 2 is a side elevation of the same, and Fig. 3 is a vertical cross-section.

My invention relates to apparatus adapted to be attached to or connected with a punching-machine, shearing-machine, or other apparatus for the purpose of laying off and spacing the points or lines at or on which the structural steel is to be punched, cut, or Worked.

In the drawings, 2 representsa punchingmachine which may be of any construction suitable for punching structural steel. This punching-machine is provided with a punch 3, a mandrel 4, and a stripper 5, all of which may be of the ordinary form.

Extendingintheline of feed from the punching-machine 2 is the frame 6, which is provided with the central slide 6/, mounted on which is the sliding box 7. At each side of the central slide 6 is a pattern-holder 8, which is a strip or table provided with slots 9 and bolts 10, by means of which the patterns may be adjusted and secured to the tables. These patterns 11 may be bars of structural steel which have been punched or drilled for the purpose of serving as a pattern for the bars that are to be punched, and they are Secured to the two tables 8 by the bolts 10. In such position they shall serve as gages, one for the punching of the holes in one wing of the structural steel and the other for the holes in the other wing of the same. Extending from the sliding box 7 are two arms l2 and 13, which slide or travel with-the box and extend sufficiently therefrom to engage with the removable pins la, which are adapted to be inserted in and to extend through the bolt-holes in the patterns 11. In case holes are to be punched in only one wing or flange of the structural steel only one pattern is attached to one of the tables 8, the table that is most convenient being used.

Extending from the top of the sliding box 7 is the pin 15, the purpose of which is to secure the end of the bar to be punched to the box. Extending vertically upward from either the frame 6 or from the punching-machine 2 is a bracket 16, provided with two set-screws 17 and 18, which form gages to fix the position of the bar in the punching-machine, one gage serving for one wing of' the bar and the other gage for the other Wing of the bar.

The operation is as follows: The patterns,

, which may be of wood, steel, or other material spaced and punched according to the predetermined plan, are secured to the tables 8 by means of the bolts 10, the slots 9 permitting the patterns to be adjusted to exactly the proper position with reference to the punch to duplicate the holes of the pattern in the bar to be punched. One end of the first bar to be punched is then placed in the punchingmachine, andthe first hole is punched at the desired point. In order to bring this first hole at exactly the same point in succeeding bars without the necessity of measuring the position of this point in each bar, I employ two stops, one for one wing of the bar and the other for the other wing. These stops may be formed as follows: Extending from the side of the frame 6 are two arms 19, secured to which is the horizontal shaft 20. Mounted on the shaft 20 are the swinging stops 21 and 22, which are provided with arms that whenever the stops are swung forward extend in the path of the wings of the bar to be punched. These stops are adjustable on the shaft 20, and they may be secured at the desired point by the collars 23, which are provided with set-screws which engage with'the shaft 20. As the first hole in the first bar is punched in one wing, one of the stops 21 is so adjusted on the shaft 20 that when the stop is swung forward the arm or stop on the end thereof shall rest against the end of the bar, and by fixing the stop in this position it serves as a gage for succeeding bars. As soon as the first hole is punched in one wing of the bar and the gage or stop 21 has been adjusted and secured the bar is so turned as to bring the other wing thereof on the mandrel of the IOO punch. The bar is then adjusted to the proper y position for punching the iirst'hole in the second Wing, the second stop or gage 22 is ad justed and secured to serve for succeeding bars, and the hole is punched.

of the sliding box 7, and the pin is caused to pass through the hole, thus securing the end of the bar to the sliding box. One of there- Inovable pins 14, which is provided With a shoulder 24, that insures the pin seating itself properly, is placed in the second hole of one of the patterns 11 in front of and in the path of the arm 12 of the sliding box 7, and the sliding box is drawn away from the punchingvmachine until the arm 12 strikes and remains in contact With the pin 14. This brings the bar to the proper position for the punching o'f-the second hole. The succeding holes are punched in their propel' places by advancing the pin 14 another hole in the manner already described. vWhen all of the holes of this Wing have been punched, if yholes are to be punched in the other Wing the bar is drawnout of the punching-machine, removed from the frame 6, and carried back to the starting-point, Where after the bar has been so turned as to bring the other Wing on the mandrel 4 and the first hole of this Wing is secured on the pin 15 of the sliding-box 7 in the manner already described the holes are punched in the same manner as .has 'been practiced With the first Wing, the second pattern 11 on the other table 8 being used to space the holes to be punched;l but by having more than one row of `holes in one pattern but a single pattern may be employed for both Wings.

Although I have shown and described a punching-machine in connection with laying-ofand spacing apparatus, I do not desire to limit myselfI thereto, as it maybe employed in connection With shearing or other metal-Working apparatus.

The first holev of one Wing is then brought over the pin 15\ The advantages of my invention Will be ap# preciated by those skilled in the art. Instead of laying oi, spacing, and marking each bar by hand the work is done during'the punching, cutting, or `Working operation, saving time, skill, and labor.

Having lthus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a laying-ofi' and spacing machine, the combination of a table for supporting the pat= tern, said table being provided with slots and bolts for adjusting and securing the pattern, a movable carrier adapted to receive and carry the harto be Worked, and amovable stop adapted to be fixed at points indicated bythe pattern.

2. In a laying-ott and spacing machine, a frame having a central track, a carrier adapted to travel on thetrack, double pattern-carrying tables one on each side of the-track, and p an adjustable stop adapted-to stop the carrier at points indicated by the pattern.

'3. In a laying-0E and spacing'machine, the combination of a table yfor supporting the pattern, said table being provided'with adjusting devices, for adjusting and securing vthe pattern thereto, a movable carrier adapted to receive and carry thebarto be Worked. -a movable stop adapted to ybe fxed at points indicated by the pattern, and to engagevwith the movable carrier; a cutting-machine,'and one or more adjustable stops for gaging'- the position of the iirst cut in the bar to he Worked.

In testimony whereof I have hereunto set my hand.

CYRUS M. CARNAHAN.

Witnesses:

GEO. B. BLEMING, CARRIE E. -Eecinns 

